S
M
T
W
T
F
S
28
87°
68°
29
87°
71°
30
91°
68°
1
98°
71°
2
99°
72°
3
102°
73°
4
103°
73°
5
97°
70°
6
95°
70°
7
86°
72°
8
87°
72°
9
90°
69°
10
94°
74°
11
85°
68°
12
81°
64°
13
82°
62°
14
86°
64°
15
87°
65°
16
90°
67°
17
90°
68°
18
88°
67°
19
87°
64°
20
88°
65°
21
82°
62°
22
83°
62°
23
85°
63°
24
86°
66°
25
83°
65°
26
87°
66°
27
87°
67°
28
88°
67°
29
82°
66°
30
87°
67°
31
88°
67°
1
87°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Gretna
Gretna's July 2026 forecast shows daily high temperatures ranging from 81° to 95°, with overnight lows between 62° and 74°. The average high for July is 87° with an average low of 66°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Gretna. See also: August | September | October.
